对于急性大动脉综合征的D-Dimer的诊断准确性:系统性审查和元分析
Munira Essat1, Steve Goodacre1, Abdullah Pandor1
1Sheffield Centre for Health and Related Research, University of Sheffield, Sheffield, UK.
Annals of emergency medicine
|June 18, 2024
概括
在诊断急性大动脉综合征方面,D-二次体检显示出高灵敏度 (96.5%),但具有中度的特异性 (56.2%). 这一系统性审查澄清了其诊断准确性,考虑到研究的局限性和异质性.
科学领域:
- 心脏病学 心脏病学
- 诊断的准确性 诊断的准确性
- 医疗紧急情况.
背景情况:
- 急性大动脉综合征 (AAS) 是一种严重的医疗紧急情况.
- 之前对D-二次体对AAS的诊断准确性的系统性审查产生了相互矛盾的结果.
- 最近的研究需要对D-二聚体在AAS诊断中的作用进行更新的概述.
研究的目的:
- 进行系统审查和元分析.
- 为了确定D-二次体的诊断准确度,用于诊断急性大动脉综合征.
- 使用最近的数据提供一个明确的概述.
主要方法:
- 在 MEDLINE,EMBASE 和 Cochrane 图书馆进行了搜索,截至 2024 年 2 月.
- 包括诊断队列研究,比较D-二分体与参考标准 (例如CTA,MRI).
- 使用双变量元分析和QUADAS-2工具进行质量评估.
主要成果:
- 包括25项队列研究,18项用于500 ng/mL值的初级元分析.
- 总结灵敏度为96.5% (95% CrI 94.8%98%) 和总结特异性为56.2% (95% CrI 48.3%63.9%).
- 在特异性方面观察到显著的异质性 (33%86%).
结论:
- D-二元体对AAS具有很高的敏感性,但具有中度的特异性.
- 估计中的不确定性归因于偏见和异质性风险.
- 在先前审查中,更高的特异性可能来自于包括病例控制研究.
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